CN104455470B - A kind of high pressure resistant reverse needle valve - Google Patents
A kind of high pressure resistant reverse needle valve Download PDFInfo
- Publication number
- CN104455470B CN104455470B CN201410529453.3A CN201410529453A CN104455470B CN 104455470 B CN104455470 B CN 104455470B CN 201410529453 A CN201410529453 A CN 201410529453A CN 104455470 B CN104455470 B CN 104455470B
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- China
- Prior art keywords
- valve
- valve element
- bayonet socket
- high pressure
- dop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000012530 fluid Substances 0.000 claims abstract description 32
- 238000004891 communication Methods 0.000 claims description 21
- 230000008676 import Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010063493 Premature ageing Diseases 0.000 description 1
- 208000032038 Premature aging Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/12—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with streamlined valve member around which the fluid flows when the valve is opened
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a kind of high pressure resistant reverse needle valve, which includes：Valve body, is provided with the valve body that fluid passage connection is outside, and the top of the fluid passage is provided with the through hole outside a connection, is provided with bayonet socket in the fluid passage, the bayonet socket be respectively provided on two sides with inlet and outlet；Valve element, the valve element is located in the bayonet socket of the valve body, be provided with opening in the valve element, the valve element be respectively arranged at two ends with the first dop and the second dop, movable distance of the valve element in the bayonet socket is limited between first dop and the second dop；Elastic component, the elastic component are socketed on the valve element, and between the second dop positioned at the valve element and the bayonet socket of the valve body；Valve rod, the Access Division of the valve rod are removably secured in the through hole of the valve body, and the stem bottom is provided with control-rod, and the control-rod is provided with groove, and the valve rod controls the opening and closing of the valve element.
Description
Technical field
The present invention relates to needle valve, specifically, be related to a kind of can in control pipeline fluid whether circulate high pressure resistant
Reverse needle valve.
Background technology
Needle valve is the important component part of pipe-line system, and needle valve is a kind of valve that can realize accurate adjustment control
Door, can be applied to every field.For example, the needle valve of oil gas field onsite application.
With the passage of needle valve use time, the increasing of open and close number of times, the air-tightness of needle valve may be subject to shadow
Ring, cause closing bad sealing close, the phenomenon of fluid seepage.Especially in the presence of high-pressure fluid, needle valve is opening pass
After closing several times, that is, there is serious leakage phenomenon.One of the main reasons is, under the active force of high pressure, needle and valve body
There is deviation in the cutting edge center of needle stand, needle is subject to eccentric wear, damage needle stand cutting edge, causes needle stand not tight with syringe needle closure, makes stream
Body drain is lost.Especially, valve in off position under, under the high-pressure forces of fluid, valve body and valve rod are all the time in mutually arranging
The state that scolds, makes valve body body be in the situation of tired stress all the time, so as to premature aging, loses the work of tight closing
With.Valve seepage causes fluid leakage, not only can to environment, and change needle valve when, it is necessary to stop production stream
Journey, carries out blowdown pressure letdown；Both crude oil production flow process had been affected, accessory raw material can have been increased again, cause the raising of production cost.
Accordingly, it would be desirable to a kind of new needle valve, can solve the problem that the useful life that above-mentioned needle valve is present is short, bad sealing is close
Etc. drawback.
Content of the invention
The technical problem to be solved is to provide a kind of high pressure resistant reverse needle valve, and the flow direction of high-pressure fluid is valve
Core is closed and provides power, and can be high pressure resistant for a long time, is improved the seal of itself, is facilitated installing/dismounting, such that it is able to save
Production cost.
For achieving the above object, the present invention provides a kind of high pressure resistant reverse needle valve, and which includes：Valve body, in the valve body
Fluid passage connection outside is provided with, the top of the fluid passage is provided with the through hole outside a connection, in the fluid passage
Be provided with bayonet socket, the bayonet socket be respectively provided on two sides with inlet and outlet；Valve element, the valve element are located in the bayonet socket of the valve body,
Be provided with communication port in the valve element, the valve element be respectively arranged at two ends with the first dop and the second dop, the valve element is described
Movable distance in bayonet socket is limited between first dop and the second dop；Elastic component, the elastic component are socketed in institute
State on valve element, and between the second dop positioned at the valve element and the bayonet socket of the valve body；Valve rod, the Access Division of the valve rod can
It is rotatably secured in the through hole of the valve body, the stem bottom is provided with control-rod, the control-rod is provided with groove, described
Valve rod controls the opening and closing of the valve element.
Preferably, the control-rod props up the valve element, the valve element in the bayonet socket towards the valve body import
Direction moves horizontally, and the communication port of the valve element departs from the bayonet socket, and the valve element is opened, and the liquid of the bayonet socket both sides
Body passage flow.
Preferably, against the valve element, the valve element is towards the valve body in the bayonet socket for the groove of the control-rod
Way out move horizontally, the communication port of the valve element enters the bayonet socket, the valve element is closed, and the bayonet socket both sides
The fluid passage cut-off.
Preferably, the through hole on the fluid passage top is vertical through hole.
Preferably, the section of the communication port of the valve element is T-shaped.
Preferably, the first dop of the valve element can releasably be connected to one end of the valve element.
Preferably, sealing ring is provided between the first dop of the valve element and the bayonet socket of the valve body.
Furthermore it is preferred that the elastic component is spring.
Knowable to the description above and practice, the high pressure resistant reverse needle valve that the present invention is provided, first, control-rod is provided with
Groove, relative with valve element by adjusting control-rod or groove, the opening and closing of valve element can be controlled, simple structure is exquisite；Its
Two, the opening direction of valve element is in opposite direction with what current flowed, therefore when valve element return is closed, it is not necessary to external force, flow direction
The thrust that brings can be acted on the first dop, promotion valve element to closed mode, the shutoff of high pressure pressure auxiliary valve, no longer
Abrasion valve element, so valve body can be high pressure resistant；Third, valve element is provided with elastic component, elastic component controlled bar when valve element is opened
Thrust compression, and when valve element is closed, the thrust that control-rod is provided is removed, and elastic component is recovery elastic deformation, then
The second dop return is promoted, now, the active force that flows to of elastic component and current promotes valve element return jointly, can be high pressure resistant, and
And good leak tightness, facilitate installing/dismounting, increase the service life, such that it is able to save production cost.The height being additionally, since in valve body
Press liquid flow to relation, when valve element is closed, highly pressurised liquid valve element provide thrust, make under the state of cooperating
Valve element and valve body even closer can be closed；That is, closure valve is done in the thrust conversion from highly pressurised liquid that valve element is subject to
The active force of body, contributes to the tight closure of valve element and valve body, and, thrust is bigger, and valve element is tightr with what valve body was closed.
Description of the drawings
By description below in conjunction with the accompanying drawings to embodiment, the features described above of the present invention and technological merit will become more
Clear and easy to understand.In the accompanying drawings,
Fig. 1 is the valve body schematic diagram of the high pressure resistant reverse needle valve described in one embodiment of the invention；
Fig. 2 is the valve element schematic diagram of the high pressure resistant reverse needle valve shown in Fig. 1；
Fig. 3 is the valve rod schematic diagram of the high pressure resistant reverse needle valve shown in Fig. 1；
Fig. 4 is the opening schematic diagram of the high pressure resistant reverse needle valve shown in Fig. 1；
Fig. 5 is the closed mode schematic diagram of the high pressure resistant reverse needle valve shown in Fig. 1.
High pressure resistant reverse needle valve 100
10：Valve body；11：Fluid passage；12：Bayonet socket； 13：Import；14：Outlet；15：Through hole；
20：Valve element；21：Communication port；22：First dop；23：Second dop；30：Elastic component；
40：Valve rod；41：Access Division；42：Control-rod；43：Groove；50：Sealing ring.
Specific embodiment
Understandable for enabling the above objects, features and advantages of the present invention to become apparent from, below in conjunction with the accompanying drawings and concrete real
The present invention is further detailed explanation to apply mode.
Fig. 1 is the valve body schematic diagram of the high pressure resistant reverse needle valve described in one embodiment of the invention.Fig. 2 is shown in Fig. 1
The valve element schematic diagram of high pressure resistant reverse needle valve.Fig. 3 is the valve rod schematic diagram of the high pressure resistant reverse needle valve shown in Fig. 1.As schemed
1st, shown in Fig. 2 and Fig. 3, high pressure resistant reverse needle valve 100 includes valve body 10, valve element 20, elastic component 30, valve rod 40 and sealing ring
50.
Valve body 10 is usually inverted T font, including horizontal channel and Vertical Channel, but is not limited to T font, in valve body 10
The fluid passage 11 for circulating for liquid is provided with, fluid passage 11 connects external environment condition, fluid passage is the passage of horizontal direction；Liquid
The top of body passage 11 is provided with the through hole 15 outside a connection, it is preferable that the through hole 15 on 11 top of fluid passage is vertical logical
Hole.Vertical through hole is located in the Vertical Channel of valve body 10, connects fluid passage 11 and external environment condition.Card is provided with fluid passage 11
Mouthfuls 12, bayonet socket 12 be respectively provided on two sides with import 13 and outlet 14；Liquid enters fluid passage 11 from import 13, flows through bayonet socket
12, flow out from outlet 14.
Valve element 20 is located in valve body 10, and valve element 20 is connected in bayonet socket 12, and can be moved horizontally in bayonet socket.Valve element 20
Communication port 21 is inside provided with, it is preferable that the section of the communication port 21 of valve element 20 is in horizontal T-shaped.21 one end of communication port is provided with two
Inlet opening, the other end are provided with an apopore.Valve element 20 be respectively arranged at two ends with the first dop 22 and the second dop 23, valve element 20
It is limited between the first dop 22 and the second dop 23 in the movable distance in bayonet socket 12, it is to avoid valve element 20 is sliding from bayonet socket 12
De-.First dop 22 is located at the water inlet nose end of the communication port 21 of valve element 20, and 13 one end of import near valve body 10, the second dop
The water outlet end of 23 communication port 21 for being located at valve element 20, and 14 one end of outlet near valve body 10；Preferably, the first of valve element 20
Dop 22 can releasably be connected to one end of valve element 20.Second dop 23 is connected as a single entity with valve element 20.
Preferably, sealing ring 50 is provided between the first dop 22 of valve element 20 and the bayonet socket 12 of valve body 10.Can strengthen makes
Sealing with the valve element 20 in state.
Elastic component 30 is socketed on valve element 20, and between the second dop 23 positioned at valve element 20 and the bayonet socket 12 of valve body 10；
When valve element 20 is moved towards 13 one end of import of valve body 10, elastic component 30 is changed into compressive state from stretched condition, when valve element 20
Towards valve body 10 13 one end of outlet move when, elastic component 30 is changed into stretched condition from compressive state.Preferably, elastic component 30 is
Spring.
Valve rod 40 is located in the Vertical Channel through hole 15 of valve body 10, and the Access Division 41 of valve rod 40 is removably secured to valve body
In 10 through hole 15,40 bottom of valve rod is provided with the control-rod 42 that control valve element 20 is moved, and control-rod 42 is provided with groove 43.
When valve rod 40 rotates to different chains of command, i.e. control-rod 42 or the contact with valve element 20 of groove 43, can control
What turns off for the connection of the fluid passage 11 of 12 both sides of bayonet socket, and can reach control valve element 20 opens and closes to obtain purpose.
When control-rod 42 props up valve element 20, valve element 20 is moved horizontally towards 13 direction of import of valve body 10 in bayonet socket 12,
The communication port 21 of valve element 20 can depart from bayonet socket 12, and now, valve element 20 is in opening；The groove 43 of control-rod 42 is against valve
Core 20, valve element 20 are moved horizontally towards 14 direction of outlet of valve body 10 in bayonet socket 12, the communication port 21 of valve element 20 return again
Enter card inlet 12, now, valve element 20 is closed.
The use process of high pressure resistant reverse needle valve 100 is described below.
Fig. 4 is the opening schematic diagram of the high pressure resistant reverse needle valve shown in Fig. 1.As shown in figure 4, being connected in pipeline
High pressure resistant reverse needle valve 100 for opening.Rotary valve rod 40, when the control-rod 42 of valve rod 40 is contacted with valve element 20,
Thrust can be provided, promote valve element 20 to move horizontally towards 13 direction of import of valve body 10 in bayonet socket 12, valve element 20 is opened
Moving direction is with the flow direction of highly pressurised liquid conversely, be reverse mobile, valve element 20 drives elastic component 30 to move horizontally, and elastic component 30 is supported
Start behind the side of bayonet socket 12 in contraction state, valve element 20 is hidden in the entrance point of the communication port 21 in bayonet socket 12 and departs from bayonet socket
12, the communication port 21 of valve element 20 exposes, and the highly pressurised liquid in fluid passage 11 can be entered into by the entrance point of communication port 21
In valve element 20, and flow out from the port of export of communication port, in the fluid passage 11 of the opposite side for entering into bayonet socket 12, and from valve body 10
Outlet flow out, realize the connection of 12 both sides of bayonet socket, therefore valve element 20 be in opening.
Fig. 5 is the closed mode schematic diagram of the high pressure resistant reverse needle valve shown in Fig. 1.As shown in figure 5, being connected in pipeline
High pressure resistant reverse needle valve 100 for closed mode.Rotary valve rod 40, the groove on the control-rod 42 of valve rod 40 and valve element 20
When relative, the thrust that control-rod 42 is provided is removed, by return after the no longer stress of valve element 20, the direction of 20 return of valve element and high pressure
The direction of liquid flowing is identical, and now, valve element 20 is subject to two active forces, and first is that highly pressurised liquid flow direction acts on the first dop
The motive force that brings on 22, second be side be against that the elastic component 30 of bayonet socket 12 produced to recover elastic deformation to valve element
The thrust of 20 the second dop 23,13 side of import towards valve body 10 in the bayonet socket 12 that makes a concerted effort with movable valve plug 20 of two active forces
To moving horizontally, the entrance point of the communication port 21 of valve element 20 is hidden in bayonet socket 12 again, between the first dop 22 and bayonet socket 12
Sealing ring strengthen the sealing of valve element 20, then liquid cannot be entered in valve element 20 from fluid passage 11, then fluid passage 11
Separated by bayonet socket 12 and valve element, it is impossible to realize the connection of 12 both sides of bayonet socket, therefore valve element 20 is closed.
The high pressure resistant reverse needle valve that the embodiment that provided by the invention described above is provided, first, control-rod be provided with recessed
Groove, relative with valve element by adjusting control-rod or groove, the opening and closing of valve element can be controlled, simple structure is exquisite；Second,
The opening direction of valve element is in opposite direction with what current flowed, therefore when valve element return is closed, it is not necessary to external force, flow direction are brought
Thrust can act on the first dop, promote valve element to closed mode, the shutoff of high pressure pressure auxiliary valve, no longer wear and tear
Valve element, so valve body can be high pressure resistant；Third, valve element is provided with elastic component, elastic component the pushing away of controlled bar when valve element is opened
Power effect compression, and when valve element is closed, the thrust that control-rod is provided is removed, elastic component is then promoted for recovering elastic deformation
Second dop return, now, the active force that flows to of elastic component and current promotes valve element return jointly, can be high pressure resistant, Er Qiemi
Closing property is good, facilitates installing/dismounting, increases the service life, such that it is able to save production cost.The high pressure liquid being additionally, since in valve body
Body flow to relation, when valve element is closed, highly pressurised liquid valve element provide thrust, make the valve element under the state of cooperating
Even closer can close with valve body；That is, closure valve body is done in the thrust conversion from highly pressurised liquid that valve element is subject to
Active force, contributes to the tight closure of valve element and valve body, and, thrust is bigger, and valve element is tightr with what valve body was closed.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any people for being familiar with the technology disclosed herein technical scope in, the change or replacement that can readily occur in, should all cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (8)
1. a kind of high pressure resistant reverse needle valve, which includes：
Valve body, is provided with fluid passage connection outside in the valve body, the top of the fluid passage is provided with outside a connection
Through hole, is provided with bayonet socket in the fluid passage, the bayonet socket be respectively provided on two sides with inlet and outlet；
Valve element, the valve element are located in the bayonet socket of the valve body, are provided with communication port, the two ends difference of the valve element in the valve element
The first dop and the second dop is provided with, movable distance of the valve element in the bayonet socket is limited to first dop and
Between two dops；
Elastic component, the elastic component are socketed on the valve element, and the card of the second dop positioned at the valve element and the valve body
Between mouthful；
Valve rod, the Access Division of the valve rod are removably secured in the through hole of the valve body, and the stem bottom is provided with control
Bar, the control-rod are provided with groove, and the valve rod controls the opening and closing of the valve element.
2. high pressure resistant reverse needle valve as claimed in claim 1, it is characterised in that the control-rod props up the valve element, described
Valve element is moved horizontally towards the import direction of the valve body in the bayonet socket, and the communication port of the valve element departs from the bayonet socket,
The valve element is opened, and the fluid passage circulation of the bayonet socket both sides.
3. high pressure resistant reverse needle valve as claimed in claim 1, it is characterised in that the groove of the control-rod is against the valve
Core, the valve element are moved towards the outlet horizontal direction of the valve body in the bayonet socket, and the communication port of the valve element enters institute
Bayonet socket is stated, the valve element is closed, and the fluid passage cut-off of the bayonet socket both sides.
4. high pressure resistant reverse needle valve as claimed in claim 1, it is characterised in that the through hole on the fluid passage top is vertical
Through hole.
5. high pressure resistant reverse needle valve as claimed in claim 1, it is characterised in that the section of the communication port of the valve element is T-shaped.
6. high pressure resistant reverse needle valve as claimed in claim 1, it is characterised in that the first dop of the valve element can be releasably
It is connected to one end of the valve element.
7. high pressure resistant reverse needle valve as described in claim 1 or 6, it is characterised in that the first dop of the valve element and described
Sealing ring is provided between the bayonet socket of valve body.
8. high pressure resistant reverse needle valve as claimed in claim 1, it is characterised in that the elastic component is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529453.3A CN104455470B (en) | 2014-10-10 | 2014-10-10 | A kind of high pressure resistant reverse needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529453.3A CN104455470B (en) | 2014-10-10 | 2014-10-10 | A kind of high pressure resistant reverse needle valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104455470A CN104455470A (en) | 2015-03-25 |
| CN104455470B true CN104455470B (en) | 2017-03-08 |
Family
ID=52901995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410529453.3A Expired - Fee Related CN104455470B (en) | 2014-10-10 | 2014-10-10 | A kind of high pressure resistant reverse needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455470B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594648A (en) * | 2020-06-04 | 2020-08-28 | 浙江方顿仪表阀门有限公司 | High pressure resistant reverse needle valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2120231U (en) * | 1992-05-15 | 1992-10-28 | 杨秀勇 | Throttle needle valve |
| CA2253637A1 (en) * | 1998-11-04 | 2000-05-04 | Flomax Services Ltd. | Flow control choke valve |
| CN2476683Y (en) * | 2001-04-30 | 2002-02-13 | 西安市思坦电子科技有限公司 | Pressure valve for oil field oil well water injection well |
| CN2835725Y (en) * | 2005-07-14 | 2006-11-08 | 王战勇 | Step type oblique flapper valve |
| CN2861668Y (en) * | 2005-12-02 | 2007-01-24 | 大庆石油管理局 | Pressure control valve for well cementing |
| CN201236982Y (en) * | 2007-12-18 | 2009-05-13 | 浙江凯瑞特阀业有限公司 | Constant-current valve |
| CN202039813U (en) * | 2011-04-18 | 2011-11-16 | 北京九尊能源技术股份有限公司 | Needle valve |
| CN102818054A (en) * | 2012-08-31 | 2012-12-12 | 中国石油天然气股份有限公司 | Power-assisted needle type back pressure control method and back pressure valve thereof |
-
2014
- 2014-10-10 CN CN201410529453.3A patent/CN104455470B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2120231U (en) * | 1992-05-15 | 1992-10-28 | 杨秀勇 | Throttle needle valve |
| CA2253637A1 (en) * | 1998-11-04 | 2000-05-04 | Flomax Services Ltd. | Flow control choke valve |
| CN2476683Y (en) * | 2001-04-30 | 2002-02-13 | 西安市思坦电子科技有限公司 | Pressure valve for oil field oil well water injection well |
| CN2835725Y (en) * | 2005-07-14 | 2006-11-08 | 王战勇 | Step type oblique flapper valve |
| CN2861668Y (en) * | 2005-12-02 | 2007-01-24 | 大庆石油管理局 | Pressure control valve for well cementing |
| CN201236982Y (en) * | 2007-12-18 | 2009-05-13 | 浙江凯瑞特阀业有限公司 | Constant-current valve |
| CN202039813U (en) * | 2011-04-18 | 2011-11-16 | 北京九尊能源技术股份有限公司 | Needle valve |
| CN102818054A (en) * | 2012-08-31 | 2012-12-12 | 中国石油天然气股份有限公司 | Power-assisted needle type back pressure control method and back pressure valve thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104455470A (en) | 2015-03-25 |
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Granted publication date: 20170308 |